Two processes, P and Q, are used by a supplier to produce the same component, Z, which
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Two processes, P and Q, are used by a supplier to produce the same component, Z, which is a critical part in the engine of the BearingPort 778 airplane. The specification for Z calls for a dimension of 0.24 mm ± 0.03. The probabilities of achieving the dimensions for each process based on their inherent variability are shown in the table found in the worksheet tab Prob08-11 in the Excel file Ch08Data.xlsx. If k = 60,000, what is the expected loss for each process? Which would be the best process to use, based on minimizing the expected loss?
BearingPort Airplane Co. | |||||
Calculation of Taguchi Loss Values | |||||
Value | Loss ($) | Process P Probability | Weighted Loss ($) | Process Q Probability | Weighted Loss ($) |
0.20 | 96.00 | 0 | 0.00 | 0.02 | 1.92 |
0.21 | 54.00 | 0.12 | 6.48 | 0.03 | 1.62 |
0.22 | 24.00 | 0.12 | 2.88 | 0.15 | 3.60 |
0.23 | 6.00 | 0.12 | 0.72 | 0.15 | 0.90 |
0.24 | 0.00 | 0.28 | 0.00 | 0.30 | 0.00 |
0.25 | 6.00 | 0.12 | 0.72 | 0.15 | 0.90 |
0.26 | 24.00 | 0.12 | 2.88 | 0.15 | 3.60 |
0.27 | 54.00 | 0.12 | 6.48 | 0.03 | 1.62 |
0.28 | 96.00 | 0 | 0.00 | 0.02 | 1.92 |
Expected Loss | 20.16 | 16.08 |
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Related Book For
An Introduction To Six Sigma And Process Improvement
ISBN: 9781133604587
2nd Edition
Authors: James R. Evans, William M. Lindsay
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